Патент USA US2112348код для вставки
March 29, 1938. P. RUTTEN 2,112,348 ROOF FOR sILos‘ AND THE LIKE Filed June 10, 1957 2 Sheets-Sheet l 1.5 x“ .33 17 279 25 A ZZQrn/eys March 29, 1938. p_ RUTTEN 2,112,348 ROOF FOR SILOS AND THE LIKE Filed June 10, 1957 2 Sheets-Sheet 2 Ifzvenior “ 1% m AiZorw/eyf Patented Mar. 29, 1938 2,112,348 UNITED STATES PATENT OFFICE 2,112,348‘ ROOF FOR SILOS AND THE LIKE Peter Rutten, Osakis, Minn. Application June 10, 1937, Serial'No. 147,468 8 Claims. (Cl. 108-32) This invention relates to roof structures for silos and the like wherein the roof is generally connected sections with said sections pushed to gether to the limit of their movement in one of dome-shape and made up of a plurality of direction; / interconnected sector shaped sections. Fig. 5 is a plan view of a single roof section; In erecting structures, such as silos, one of the Fig. 6 is a more or less diagrammatic side ele principal problems which has been encountered vation of one of said roof sections showing the is that of properly ?tting the roof to the upper curvature which gives the dome-shape to the edge of the silo wall. This is due mainly to two } things. One is that silos are generally measured‘ 10 by their interior diameter and due to the indi vidual characteristics‘ of various types of wall structures, their thickness and therefore the out side diameters of several types of silos will be materially different and in no way standardized. 15 Another reason which makes the building of a silo roof dii?cult is the fact that almost invariably the wall structure is out of round and a rela tively ?exible roof construction must be used. ‘ It is, therefore, one of the objects of my in 20 vention to provide a roof structure for silos and the like which can be,readily assembled upon a silo of odd outside diameter and irregular shape. It is a further object of my invention to pro vide means for adjustably connecting the sector 25 shaped elements which make up the roof by pro viding for limited relative movement in the joints connecting said sections. ' A still further object is to provide a novel type of joint structure and auxiliary connection be roof; Fig. 7 is a vertical section taken on the line 1-1 of Fig. 6; ‘ Fig. 8 is a similar section taken at the lower end of a roof sector on the line 8——8 of Fig. 6; Fig. 9 is a slightly enlarged fragmentary view showing the interconnected upper corners of a pair of adjacent roof sections; Fig. 10 is an enlarged vertical section through the upper portion of a roof section and the lower portion of the roof cap; ' , _ Fig. lliis a sectional view through portions of adjacent roof sections and the connector strip used to interlock the last two sections joined in Ni constructing a roof; Fig. 12 is a fragmentary perspective of said connector strip; Fig. 13 is an enlarged fragmentary plan view of portions of adjacent sections joined by the con nector strip; and , ‘ Fig. 14 is an enlarged vertical section through portions of the silo wall, a roof section and the 30 tween adjacent sections, whereby the greatest element connecting said section to the wall. amount of relative movement between sections is the embodiment of my invention shown in at that point where the roof sections are‘con— theIndrawings, the roof is made up of a plurality nected to the silo walls and there is substantially of sector-shaped sections l5 which are bent in no relative movement at theupper ends of said an arcuate shape, as shown in Fig. 6, and pref sections where they connect with the roof cap. erably provided with corrugations. The corru This latter feature permits the use of standard gations shown throughout the views have right sizes of roof caps, regardless of the adjustment angled bends but, of course, any type of corru necessary where the sections are connected to gation could be used. Due to the shape of the the silo wall. ' roof sections, I have tapered the corrugations so These and other objects and advantages of the that they widen from the top to the bottom of invention will more fully appear from the follow each section. This tapering is shown best in Fig. ing description made in connection with the ac 5 and also in Figs. 7 and 8, the latter two ?gures companying drawings, wherein like reference being cross sections of the upper and lower por characters refer to the same or similar parts tions of a section. The corrugated panel is not ‘throughout the views, and in which: an absolute necessity but materially strengthens Fig. 1 is an elevation of approximately one the roof structure and is highly desirable in a quarter of a fully erected roof; roof of this kind where no supporting framework Fig. 2 is a fragmentary vertical section through need be used. the structure shown in Fig. 1; The side edges of each roof section are bent Fig. 3 is a sectional view taken transversely of upon themselves, as best shown in Figs. 3, 4, 7 a roof section with 4 portions of adjacent sec tions extended to the limit of their movement away from each other; Fig. 4 is a sectional view taken transversely of a complete roof section and portions of adjacent 15 and 8. These bent over portions include an up standing wall IG, a relatively horizontal wall I‘! which is bent back over the body of the roof sec tion, and a downwardly turned tongue I 8 which is the extreme edge of the metal making up one 9,119,348 of the sections. It will be noted that the down wardly turned tongue I8 is spaced from the main portion of the roof section and it is preferred that this space he just sumcient to permit the sliding When this amount of movement in a single joint between adjacent sections is multiplied by the number of joints in the entire roof structure, it of a part of an adjoining roof section beneath it. The opposite side of the roof section is bent in expansion or contraction is provided. ‘ will be seen that quite a considerable degree of exactly the same manner as the left-hand side It is not necessary to have this provision for lateral adjustment around the roof at the top of which has just been discussed, except that this the sections nor is it desirable. bent or rolled over edge on the right-hand side 10 is below the main surface of the roof section while that on the left-hand side is bent over above the roof section. It, of course, makes no difference whether the bent edge is on the top or bottom of the roof section except that the edges 15 of each section are bent oppositely to one an other, with the further provision, however, that all sections of the roof be formed in the same manner. ' The above described bent over edges are adapt 20 ed to be interlocked by sliding one bent over edge into the edge of the adjacent section, this being done advantageously by starting the bottom edge of a section to be added into the upper portion of the previously connected section and sliding the first mentioned section downwardly until it is in the correct position in interlocking engage ment with the section to which it is joined. It will be noted that these bent over edges are of the same cross sectional size and shape through out the entire length of the sections. This is brought out by comparing the bent over edges in Figs. 7 and 8. This interconnection of the edges of adjacent sections is continued successively until all the roof sections are in place. However, when the final section has been joined to the section just preceding it in the assembling operation, it will be found that the free edge of the last section cannot be joined to the first sec tion to be placed in the same manner as the other sections were joined, that is by sliding inter connection of the bent over edges of the last two to be joined. For that reason a connector ele ment, indicated generally by the letter C is pro vided. The structure is best shown in Fig. 12 45 and includes a central vertical portion is which has the oppositely extending horizontal areas 20 and 2! which extend from the top and bottom of the portion I 9, respectively. The areas 20 and 2! can be considered to correspond with those To the contrary. it is preferable that the opening defined by the top edges of the roof sections be maintained rela tively constant. If this is the case, a roof cap 26 of a standard size can be used to cover the roof opening. I have, therefore, provided means for connecting the interconnected upper corners of adjacent roof sections with some sort of con nector, such as a bolt 21 which extends through said adjacent upper corners, as best shown in Figs. 9 and 10. A nut is provided to anchor said bolt and is indicated by the numeral 28. As shown in Fig. 10, this bolt extends also through the lower portion of the cap 26, thereby securing said cap and roof sections ?rmly together. The lower edge of the roof may be secured to the silo wall by any suitable means. In Fig. 14, I have shown a strap 29 which has an offset lower 25 portion provided with a slot 30 which is adapted to receive a hook-like bolt 3i which has threaded on its elongated end a nut 32. The hook-shaped portion of the bolt is adapted to engage a hoop 33, such as is generally used to bind’ the wall 30 panels of silo structures. The bracket 29 is shown secured by a bolt 34 to the lower portion of each roof section. . From the foregoing, it will be seen that I have provided a roof structure for silos made‘up of 35 arcuate interconnecting sector shaped elements which may be pro-formed at the factory and need not be made to any particular size for the indi vidual silo to be roofed. In addition to the fact that the above described bent over interconnect 40 ing edges of said sections permit adjustment of the roof to various diameters, the particular way in which I have formed these bent over edges, provides a ?nished roof structure which is un usually strong, said interconnecting edges provid ing sui?cient strength that no supporting frame work or ribs need be used to strengthen the roof. This is a feature which not only lessens the cost of the structure but also greatly simpli?es its erection, and since it is contemplated that struc 50 tures of this type be erected not only by skilled with the turned over edges of the roof sections. It, therefore, follows that the outer vertical Walls labor but by the individual purchaser. ease of 22 and inwardly turned horizontal areas 23 with erection is an important factor. It should be the tongues 2‘ correspond with the portions 16. noted also that the roof sections are connected and secured by a minimum of bolts. Only one is 55 I1 and I8 of the bent over edges of the roof sec tion. Therefore, this final connecting strip C can used at the top corners of adjacent sections, and be used to interconnect the adjacent edges of the the bottom of each section is secured by only one bolt. This feature is of importance because of last roof section to be formed, and the ?rst roof > the reduction in material costs and also because section which was put in place. 60 When all of the sections have been connected it greatly lessens the labor required in erection. 60 It should be understood that the chute dormer in the manner above described, the lower edge of the assembled roof is adapted to overlie the may be built in one of the roof sections so that upper edge of the silo wall 25, as shown in Fig. 14. it in no way interferes with the general mode of If the roof is found to be too large for the outer erecting the roof. It will, of course, be understood that various diameter of the silo wall so that a relatively close fit is not obtained, the size of the roof at its changes may be made in the form, details, ar rangement and proportions of the various parts lower edge may be reduced by pushing the sec tions together, this adjustment is made possible without departing from the scope of my inven by the construction of the interconnected bent tion. What is claimed is: edges of the roof sections since the tongues i8 70 1. In a roof structure for silos and the like, a of said bent over edges are adapted to be moved portions of adjacent roof sections which connect laterally within definite limits determined by the distance between a co-operating tongue iii of an adjoining section and the oppositely disposed 75 vertical portion i6 of said adjoining section. plurality of arcuate sector-shaped sections whose non-parallel edges are bent upon themselves and adapted to interlock with the edges of adjacent sections in a manner permitting limited move 75 3 2,112,343 ment between said sections, and a connector for forming the ?nal joint between the last two adja cent edges to be connected comprising an ele ment having parallel edges bent upon themselves extreme edges positioned normally to the main surfaces of the sections and spaced therefrom, whereby the edges of adjacent sections are adapted to interengage to hold said sections to and adapted to engage the edges of said last men gether. tioned adjacent sections. , 6. In a dome-shaped roof structure for silos and the like, a plurality of longitudinally arcuate sector-shaped sections, the longitudinal edge por tions of said sections being bent to a substan 2. In a roof structure for silos and the like, a plurality of sector-shaped sections having radial corrugations, the edges of said sections being bent 10 upon themselves and adapted to interlock with tially‘ rectangular cross-sectional shape on the 10 similarly bent edges of adjacent sections, said corrugations being spaced suf?ciently from said upper sides of said sections with their extreme bent edges to permit limited lateral shifting move ment between adjacent sections, and a connector surfaces of the sections and spaced therefrom a adapted to interlock with the adjacent edges of the last two of said sections to be joined. ~r v 3. In a roof structure for silos and the like, a plurality of arcuate sector-shaped sections hav ing radial corrugations, the edges of said sections 20 being bent upon themselves and adapted to slid ably interlock with similarly bent edges of ad jacent sections, a connector adapted to interlock with the adjacent edges of the last two edges to be joined, means for substantially rigidly con necting the upper corners of adjacent sections, and a common connector and anchoring means secured to the lower ends of said sections. 4. In a roof structure for silos and the like, a plurality of sector-shaped sections adapted to 30 form a dome-like roof, the edges of said sections being bent upon themselves and adapted to inter lock with limited lateral shifting movement with oppositely bent edges of adjacent sections, a cen tral roof cap adapted to overlie the top edges of 35 said sections, bolts extending through said roof cap and the overlapping upper corners of adjacent interlocking sections, and a connector ring se cured at spaced points to the lower portions of said‘ sections. 5. In a dome-shaped roof structure for silos 40 and the like, a plurality of longitudinally arcuate sector-shaped sections, the longitudinal edge por tions of said sections being bent to a substantial ly rectangular cross-sectional shape with their 5 edge portions positioned normally to the main distance substantially equal to the thickness of the material forming said sections, whereby said 15 edges can be slidably inter-engaged with simi larly bent edges on the under sides of said sec tions, the vertical sides of said rectangular por tions being spaced apart a distance substantially greater than the thickness of said sections to 20 provide for limited lateral shifting movement be tween adjacent lnter-engaged sections. 7. In a dome-shaped roof structure for silos and the like, a'plurality of longitudinally arcuate sector-shaped sections, the arcuate edge portions 25 of said sections being bent at right angles to the main surfaces of the sections and then bent in wardly parallel to said sections, and then toward said sections to points spaced from the main sur faces of said sections, the bent edges of one sec tion being slidable in an arcuate curve into inter 30' locking engagement with similarly shaped, oppo sitely bent edges of adjacent sections. ' 8. The structure in claim 7, and means for con necting the adjacent edges of the last two sec 35 tions to be, joined comprising an arcuate strip having a vertical central wall and portions ex tending laterally from said central wall at oppo site sides thereof, said extending portions being formed similarly to the edge portions of said 40 sector-shaped sections and in opposite relation to each other. PETER RU'I'I'EN.